![]() The chromaffin cells of the medulla are the body's main source of the circulating catecholamines, adrenaline (epinephrine) and noradrenaline (norepinephrine.The adrenal medulla is the core of the adrenal gland, and is surrounded by the adrenal cortex.This division is sometimes referred to as ‘functional zonation”.The cortex is divided into three zones, or layers.The source of cortisol and corticosterone hormones It completes the hypothalamic-pituitary-adrenal axis The adrenal cortex is devoted to the synthesis of corticosteroid hormones from cholesterol.They are surrounded by the adipose capsule and the renal fascia.Anatomically, the adrenal glands (suprarenal) are located in the thoracic abdomen situated 'on' top of the kidneys one on each side, specifically on their anterosuperior aspect. ![]()
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